Abstract:

This paper focused on the estuary area of the Yellow River Delta,applied the methods of lithology coring and cone penetration testing and analyzed the sedimentary characteristics of the shallow strata of the delta.The sedimentary facies tracts mainly include river channel,crevasse splay,floodplain and tide flat.There are mainly two vertical sequence types:the estuary sand sheet-lateral margin of delta and the estuary sand sheet-lateral margin of delta-sand sheet,of which the former is predominant in the northern part of the estuary area,while the latter is predominant in the northwestern part.Based on these facts,we have proposed the sedimentary model for the development of the Yellow River Delta.This model not only offers quantitative surface geophysical parameters for high-density seismic acquisition,but also provides an example for the study of sequence stratigraphy.

Key words: stratigraphic characteristics, sedimentary model, Quaternary, Yellow River Delta